The cross section of the process $e^{+}{e}^{-}\to \Lambda \bar{\Lambda }$ in the vicinity of charmonium $\psi (3770)$ including three-gluon and $D$-meson loop contributions

Yu. M. Bystritskiy, A. I. Ahmadov

The total cross section of the process $e^{+}{e}^{-}\to \Lambda \bar{\Lambda }$ is calculated within the energy range close to the mass of $\psi (3770)$ charmonium state. Two different contributions were c…